Hesitation, surging and crap mpg.

[gryphongryphon]

Just sorted my Fazer from stuttering and hesitation , it was a coil, I detected it by pull off plug leads at idle 1 at a time, 2 and 3 when removed one at once the hardly caused a deterioration in idling.When I pulled off 1 or 4 plug cap, engine at idle speed nearly stalled. So changed coil to plugs 2 and 3 , problem solved ,genuinely runs better than ever because it has had a slight stutter from low revs ever since I have owned it.